Started period b/c missed 3 daysof birthcontrol and had unprotectedsex during period, am I pregnant?

I had only been on birth control for 2 weeks and then missed 3 pills so I started my period. On the second to last day of my period I had unprotected sex but we were both extremely drunk so I don't think he ever came but I'm not entirely sure. I didn't take plan b after since I had taken it 2 weeks prior to that already (didn't want to buy it again).. so given this information what do you think the likely hood of me being pregnant is? (I know I was stupid for not protecting myself so please spare me the lecture)